[linux-cirrus] Re: IDE throughput
- From: Robert Whaley <rwhaley@xxxxxxxxxxxxxxx>
- To: linux-cirrus@xxxxxxxxxxxxx
- Date: Wed, 27 Jul 2005 13:42:58 -0400
Here is what I'm getting (needed to test this anyway, thanks for asking).
EXT3 about 1.5Mbytes/sec:
adsdebian:/mnt/hda# df .
Filesystem 1k-blocks Used Available Use% Mounted on
/dev/hda2 1027800 16428 959164 2% /mnt/hda
adsdebian:/mnt/hda# time dd if=/dev/zero of=foobar.ext3 bs=128k count=1024
1024+0 records in
1024+0 records out
real 1m21.735s
user 0m0.000s
sys 0m33.680s
VFAT about 1.5Mbytes/sec:
adsdebian:/mnt/hda# df .
Filesystem 1k-blocks Used Available Use% Mounted on
/dev/hda2 1042172 4 1042168 0% /mnt/hda
adsdebian:/mnt/hda# time dd if=/dev/zero of=foobar.vfat bs=128k count=1024
1024+0 records in
1024+0 records out
real 1m24.010s
user 0m0.040s
sys 0m13.470s
adsdebian:/mnt/hda#
Cory T. Tusar wrote:
Does anyone have any empirical evidence as to the ep93xx IDE throughput
available using the latest linux-cirrus-2.6.x kernel? Something along
the lines of 'time dd if=bigfile of=/dev/hda'?
I realize that DMA is not (yet) functional; I assume PIO modes 0-4 all
work though?
Just trying to get a handle on an upcoming project. Thanks for any and
all input.
-Cory
--
Robert Whaley
Applied Data Systems www.applieddata.net
434-244-9504 rwhaley@xxxxxxxxxxxxxxx
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